Urban tunnel intelligent lighting system and dimming method

Abstract

The invention discloses an urban tunnel intelligent lighting system and a dimming method, and the method comprises the steps of collecting the vehicle passing information and the lighting environment information inside and outside a tunnel through an environment information sensing module, building a short-time prediction model for the vehicle speed, the vehicle flow, the visibility inside the tunnel and the brightness L20 (S) outside the tunnel, in combination with brightness outside the tunnel, the traffic flow data and the short-time prediction data of visibility inside the tunnel, utilizing an information comprehensive processing module for calculating a target brightness value, using an illumination control module to adjust the illumination brightness of different sections in real time, and then using an information comprehensive processing module to compare a tunnel real-time brightness value with the target brightness value needing to be achieved; and adjusting the brightness of a lamp, so that the dynamic intelligent control over the lighting lamp in urban tunnel operation is achieved, the lighting quality is guaranteed to the maximum extent, and the problem of excessive lighting or insufficient lighting in the tunnel is solved.

Description

technical field [0001] The invention relates to the field of lighting control in urban tunnels, in particular to an intelligent lighting system and a dimming method for urban tunnels. Background technique [0002] In recent years, with the continuous development of urban tunnel construction in my country, traffic problems caused by poor operation and maintenance of urban tunnels have become increasingly prominent. Tunnel lighting must not only ensure the safety and comfort of driving in the tunnel, but also minimize energy consumption. Different from road tunnels, urban tunnel traffic has its own characteristics. Urban tunnels have a large traffic flow and relatively slow driving speed. Vehicles stay in the tunnel for a long time. Due to reasons such as difficult diffusion of gas, low visibility is very easy to occur. This phenomenon will reduce the lighting effect of lighting fixtures in the tunnel, waste electricity consumption for lighting, and easily cause traffic accid...

AI Technical Summary

Problems solved by technology

The traffic flow in other periods is obviously low. If the real-time control of the lighting brightness in the tunnel cannot be realized, it will cause a large waste of electric energy.

At present, the lighting control in the tunnel is mainly manual control, sequential control, etc., which is not flexible enough, and the phenomenon of "ineffective lighting" and "over-lighting" is particularly prominent due to the difficulty in achieving optimal control.

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